"ed5106fd-a73f-4203-87a3-9c9e7e85dcfc" . "HYDROFLUOROCARBONS"^^ . "The HFCs are a class of replacements for CFCs. Because they do not\ncontain chlorine or bromine, they do not deplete the ozone layer. All HFCs\nhave an ozone depletion potential of 0. Some HFCs have high GWPs (Global\nWarming Potentials). HFCs are numbered according to a standard scheme. The\nNational Oceanic and Atmospheric Administration (NOAA) provides more\ndetailed information about HFCs on their web site."^^ . .